US-led Moderna jab ‘is 94.5% effective’

Moderna has said its vaccine provides strong protection. Its vaccine appears to be 94.5% effective, according to preliminary data from the company's still ongoing study in 30,000 volunteers. Exactly a week ago, competitor Pfizer Inc announced its own Covid-19 vaccine appeared to be similarly effective -- news that puts both companies on track to seek permission within weeks for emergency use in the US.